GOODWILL AND INTANGIBLE ASSETS, NET - Changes in Goodwill by Segment (Details) - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning Balance				$ 673,700,000	$ 673,700,000
Goodwill impairment charge	$ 0	$ 0	$ (11,200,000)	(99,800,000)
Ending Balance	563,700,000				563,700,000	$ 673,700,000
Operating segments
Goodwill [Roll Forward]
Beginning Balance				673,700,000	673,700,000	673,900,000
Foreign currency translation adjustment					1,000,000.0	(200,000)
Goodwill impairment charge					(111,000,000.0)
Ending Balance	563,700,000				563,700,000	673,700,000
Cumulative goodwill impairment charges	(166,200,000)				(166,200,000)
Operating segments | Revlon
Goodwill [Roll Forward]
Beginning Balance				264,900,000	264,900,000	265,000,000.0
Foreign currency translation adjustment					500,000	(100,000)
Goodwill impairment charge					0
Ending Balance	265,400,000				265,400,000	264,900,000
Operating segments | Portfolio
Goodwill [Roll Forward]
Beginning Balance				171,100,000	171,100,000	171,200,000
Foreign currency translation adjustment					300,000	(100,000)
Goodwill impairment charge					(83,500,000)
Ending Balance	87,900,000				87,900,000	171,100,000
Operating segments | Elizabeth Arden
Goodwill [Roll Forward]
Beginning Balance				116,900,000	116,900,000	116,900,000
Foreign currency translation adjustment					100,000	0
Goodwill impairment charge					(27,500,000)
Ending Balance	89,500,000				89,500,000	116,900,000
Operating segments | Fragrance
Goodwill [Roll Forward]
Beginning Balance				$ 120,800,000	120,800,000	120,800,000
Foreign currency translation adjustment					100,000	0
Goodwill impairment charge					0
Ending Balance	$ 120,900,000				$ 120,900,000	$ 120,800,000